Washing machine



y 1927' E. R. ZADEMACH same mcnnns Filed 4 Sheets-Shaet 1 ATTORNEY y 1927' a. R. ZADEMACH msanm mourns Filed Aug. 26, 1925 4 Sheets-Sheet 2 INVENTOR ATTORNEY v 1,628,818 May 17, 1927- E. R. ZADEMACH WASHING MACHINE Filed A02. 96 1925 4 Sheets-Sheet 3 99 INVENTOR uafi ZWMA ATTORNEY y 1927' l E. 1%. ZADEMACH WASHING MACHINE Filed Aug. 26. 192

5 4 Sheets-Sheet 4 ATTORNEY Patented May 17, 1927.

UNITED STATES PATENT OFFICE.

ERICK B. ZADEMACH, OF NEW ROCHELLE, NEW YORK,

MENTS, TO HOBART MANUFACTURING COMPANY, OF TROY, OHIO,

OF OHIO.

ASSIGNOB, BY ASSIGN- L CORPORATION WASHING MACHINE.

Application filed August 26, 1926. Serial No. 52,521.

This invention relates to washing machines, and aims to provide a compact machine of large capacity. 7

A particular object of the invention is to facilitate the insertion and removal of the articles to be washed.

The dish racks'customarily used in dish washing machines are so heavy, when filled with dishes, that it is difficult to liftthem vertically and they may be satisfactorily handled only by sliding them horizontall L It has, therefore, been customary to provi e dish washing machines with side openings through which the racks may be slid onto a fixed support in the washing chamber. This arrangement is small machines of moderate cost, because of the ditliculty and ex ense of providing removable closures fo' 'the side openings of the washing chamber which will efi'ectivel prevent water from leaking out through them during the washing operation.

k To avoid such leakage, washing machines of moderate size have been rovided with a tank open only at the to an having a cover fitting within the top 0 the tank. In such machines it has been necessary to rovide mechanical means for raising the dis racks to the top of the tank so that they may be handled by sliding. Furthermore, such machines have had a serious disadvantage in that when the cover is opened after rinsing the dishes in very hot water, the steam within the tank escapes suddenly and may strike and scald the attendant.

The resent invention aims to do away with t e disadvantages of previous machines by eliminating the danger of leaka 'e,

inconvenient, especially in sectioned on the line 2-2 of Fig. 1;

Fig. 3 is a side elevation of the machine with the movable casing in closed position sectioned on the line 3-3 of' Fig. 2, and drawn on a larger scale;

Fig. 4 is a plan view onthe same scale as Fi 3, sectioned on the line 4-4 of Fig. 1, showing the top of the counterweight casing broken away; z

Fig. 5 is an enlarged fragmentar horizontal section on the lines 5-5 of ig. 3, showing the wash water conduit and the parts at the inner end of the slide valve shaft; I Fig. 6 is a fragpnentar vertical section on the line 6-6 of ig. 4 s owing the controlling mechanism for a cut-ofi valve in the wash conduit and locking mechanism associated therewith;

Fig. 7 is an enlarged fragmentary vertical section on the line7-7 of Figs. 1 and 4 showing the resilient bumper for arresting downward movement of the casing;

Fig. 8 is an enlarged fragmentary zontal section on the line 8-8 of Fig. 1 showing .part of the mechanism for guiding andI counterbalancing the movable casing; an

Fig. 9 is an enlarged fragmentary vertical section taken on line 9-9 of Fig. 4'an showing part of the mechanism for locking the control lever and the movable casing.

The machine shown in the drawings has a frame 1 on which is supported an o n-top tank 2 and a vertically movable opentom casing 3. In the upper art of the tank 2 is a support 4 for a rack o dishes. When the horicasing 3 is lowered, its lower edge lies inside the upper edge of the tank 2 and surrounds the outer edge of the support 4 so that the casing forms a washing chamber enclosing the support. lVashmg mechanism 5 and ipnsing mechanism 6 are provided for washing and rinsing articles in this chamber.

The frame 1 consists of four corner posts 10, and four horizontal cross bars 11. The tank 2 is mounted within this frame with its upper edge 12 at or above the top ends of the posts 10. The tank has at its top edge 12 an external flange 13 to which the inner edges of dish tables 14 and 15 may be secured.

Tu order that the machine may be placed in either corner of a room or against a wall, it may be desirable to place the two dish tables 14 and 15 at the front and right side of the machine, as shown in the drawings, or at the front and left side of the machine, or at the two sides of the machine. The position of a dish table at the left-hand side of the machine is indicated in dot and dash lines'in Fig. 4, but it should be understood that three dish tables are not ordinarily used with the machine. As hereinafter explained the machine is arranged to permit the use of dish tables in any one or two of these three positions.

The dish rack support 4 has its upper or supporting surface substantially on a level with the upper edge 12 of the tank 2 and with the inner ends of the dish tables 14 and 15. The support may be provided with a low ridge 21 about three sides of its outer-edge and with a ridge 21' of slightly greater height about its fourth side, which serve to position the dish racks On it. The ridge 21 is not high enough to interfere materially with sliding the racks from the support to the dish tables, but the ridge 21' is of sullicient height to limit the rearward movement of a dish rack.

In the form shown in the drawings, the support 4 is a square open frame mounted on four brackets 22 extending inwardl from the four corners of the tank. Besi es en porting the frame 4, the brackets 22 rovi e vertical flanges 23 which serve to guide dish racks from the dish tables to the frame 4, and horizontal flanges 24 forming a continuation of the supporting surface 20 outside the ridge 21. i

The outer portions 25 of the brackets 22 are below the level of the upper edge of the tank to permit the lower edge of the movable casing 3 to enter within the upper edge 12 of the tank.

The casing 3 is mounted on the frame 1 for vertical movement between a closed position in which its lower edge lies within the upper edge of the tank and a raised position shown in Fig. 1.

The casing 3 may be made of any shape desired, although, as hereinafter explained,

all ofthe most advantageous shape depends some-v what upon the type of washing mechanism used in the machine. For economy in construction, the casing 3 of the machine shown is made of three pieces of sheet metal 30, 31, of which one, 30, is curved approximately cylindrically to provide two sides and the top of. the casing, while the others, 31, are flat and form the other sides of the casing. The lower edges of the three pieces are turned in about a reenforcing strip 32 which extends completely around the lower edge of the casing.

The lower edge 34 of the casing is bevelled as shown in Fig. 3 to provide a sharp inner corner 33 to direct liquid dripping from the casing. into the tank 2. The casing fits loosely within the upper edge 12 of the tank 2 so as to leave a long narrow opening through which steam may escape during the washing and rinsin operations. A

The mounting o the casing supports it and guides and facilitates its movement in vertical directions, and, at the same time, leaves the front and the two sides of the support 4 wholly unobstructed when the casmgr is raised.

be mounting includes two bars 35 secured to the casing 3 and slidably mounted on the frame 1 and means for cou'nterbalancing the weight of the bars and casing. The upper ends of the bars 35 are fixed in brackets 36 secured to the casing at its rear corners. Each bar passes through an upper bracket 37 and a lower bracket 38 secured to one of the rear 11 rights 10 'of the frame of the machine. n the upper brackets 37 are rollers 39 enga ing the front sides of the bars and in the ower brackets 38 are rollers 40 engagin the rear sides of the bars. It is apparent t at the unbalanced weight of the casing will kee the slide bars in engagement with these ro ers.

The counterbalancing means, in the form shown in the drawings, include a weight 42 extending clear across the back of the frame of the machine and having a mass substantially equal to that -of the casin and the slide bars-combined. The weig t is connected with the slide. bars by means of two chains 43 which pass over the pulle wheels 44 mounted in the brackets 37 an are secured to the portions of the slide bars which lie between the rollers 39 and 40. counter-balancing mechanism and the bracket 37, 38 are enclosed in a casing 47 whose top is formed by the rear portion of the flange 13 of the tank 2. Besides protecting, the counter-weight mechanism. the casing 47 forms a dead air space which tends to pre vent cooling of a liquid in the tank 2.

Resilient bumpers are provided for limit ing upward and downward movements of the casing 3. Those for limiting the downward movement have the form of cushion rings 48 secured to the brackets 36 around the upper portions of the bars 35. They strike the flan e 13 over the brackets 3 just after the ower edge 34 of the casing the support unobstructed.

enters between the upper edge 12 of the tank and the support 4 in the space provided above the outer portions 25 of the brackets 22. A bumper 46 on a bracket serves to arrest downward movement of the weight 42-and in co uence upward movement of the casing 3wl1en the casing reaches the position shown in Fig. 1.

Anfl desired form of washing mechanism may e used to project a washing medium contained in the tank 2 against articles supported in the washing chamber provided by the casing 3 when the casing is in its lowest position. This washin mechanism may, if desired, extend into t e washin chamber and above the articles supported t erein. It is, however necessary that the washing mechanism formed and positioned so as to leave at least one side of the support 4 unobstructed, and it is desirable that it should leave both sides and the front of The washing mechanism 5 shown in the drawings is located in the tank 2 and wholly below the support 4. It includes a rotary reaction driven distributor 50, and 'a pump 51 and conduit 52 for forcing washing medium into this distributor.

To adapt it for use with this washing mechanism the tank 2 is given the form of an inverte L providing a raised floor 53 and. a well 54. Washing li uid is maintained in the well 54 up to tie to of an overflow pipe 55. The li uid in t e well may be heated by means 0 a gasheater 56 or a steam injector 57.

The pump 51 is of the centrifugal type J and is submerged in the liquid in the well 54. It is driven by an electric motor 58 located in the frame 1 in front of the well 54. The casing 59 of the pum 51 and the conduit, 52 form a single rigi unit. This unit is mounted in the tank by securin a horizontal flange 60 formed on the con uit 52 to the inner edge of the floor 53 of the tank, and securing the pump casing to the front wall 61 of the well 54 by means of a stlifiing box 62 surrbunding the shaft of the pump. The pump and conduit unit may be removed from the tank by merely releasing the'stufling box and bearing 62 and by removing two screws which pass through the flange 60 into the floor 53.

The distributor 50 has a hub 63 and two arms 64 of equal length extending radially outward from the hub at diametrically opposite oints. *The hub 63 is closed at its top an open at its bottom. It is rotatably mounted at the up eror the discharge end I of the conduit, 52 y y means of a sleeve 65 and a pin 66. The sleeve 65 extends downwardly from the top of the hub, out through the opening at the bottom of the hub, and into the conduit 52. It may be formed integral with the hub and arms as shown.

The pin 66 is screwed into a boss 67 formed on tl1e conduit52 directly below the center of its discharge opening and is held therein by a lock nut 68. The pin 66 pro ects upwardly through the discharge openin of the conduit so that it may be extended t rou h the sleeve 65 to project about the top of t 1e 'hub as shown. Two bushings 69 are fixed in the sleeve 65 to provide a long bearing is allowed between the upper end of the conduit 52 andthe'lower end of the hub.

The wash arms 64 are provided with upwardly directed discharge openings 72, 7-3,

formed to project fan-like sprays. The two end openings 73 are inclined to the axis of the distributor to cause it to rotate by reaction. When the casing 3 is in its lowest position, all the fan-shaped sprays from the (11S- charge openings, including those from the two end openings 73, are directed toward the inner surface of the casing 3 so that no liquid is. forced out between the lower edge of the casing and the upper edge of the tank.

In order that all the articles ont-he frame 4 may be washed and that some li uid may strike these articles from above, eac arm 64 is made longer than one-half the width of the frame 4 so thatas the distributor rotates the liquid from its outer discharge openings 73 strikes the articles at the corners of the support when the arms extend diagonally of I the frame, and passes up outside the frame when the arms extend across the frame, as shown in Fig. 3. In order to avoid waste and interference with the corner brackets 22, and to permit removal of the distributor for cleaning, each arm is made shorter than -one-half the diagonal of the frame 4. The

the frame.

exact form shown, but it is sutlicient that it have a curved top and at least two sides which merge into its to To avoid the necessity of stopping the To accomplish this purpose, it i is not essential that the-casing be given the til! pump and motor when the casing 4 is raised, a sliding cut-off valve 75 is provided in the conduit 52.

A control lever 76 having a vertical shaft extension 77 at one of the outer corners of the tank is provided for operating this valve. This lever is connected to the valve by means of an arm 78 on the shaft 77, a rod 79, a crank 79', a shaft 80, and a rocking lever 81. Stops 76 on the external flange 13 limit the movement of the control lever 76 in either direction.

A lock is provided for preventin movement of the control lever 76 to 0 en the valve 75 when the casing 3 is raised, t us avoidin the danger of scalding the operator, which might occur if the washing fluid were forced into the distributor when the casing was in raised position. The lock consists of a lever 82 mounted on a horizontal pivot 83 fixed in one of the brackets 22. A weight 84 from one end of this lever causes its other end 85 normally to project up into the space above the outer portion 25 of this bracket 22 and into the path of a finger 86 formed on the inner end of the control lever 76, so that when in this position it revents movement of the control lever. en the casing 3 is moved into its closed position a catch 82' secured to the interior of its lower edge strikes the end 85 of the lever 82 and depresses it below the finger 86 so that the control lever 76 may be moved to open the valve 75.

Means are also provided for locking the casing 3 in its closed position while the valve is open, preventing the accidental 1novement of the casing and avoiding the consequent danger of scalding the operator. Such means consist of a finger on the lever 82 which is moved to lie above the catch 82, when the end 85 of the lever 82 1S depressed by the catch 82' on closing the casing. When the control lever 76 is moved to open the valve 7 5, the finger 86 glides over the end 85, holding it in its down position and consequently locking the lever 82 and the cas ng against upward movement.

lIlSlIlg apparatus 6 is provided for rinsing articles on the support 4 after they have been washed. '1. he rinsing apparatus shown in the drawings includes three upwardly directed distributors 90, 91, 92. below the support 4 and two downwardly directed distributors 93 above the support 4. Rinsing fluid from a supply pipe 91 is led to the rinse distributors by a conduit 95 which has branches 96. 97 extending to the distributors 90, 91, 92, and a branch 98 extendin" up between the back wall of the tank and the support 4 to a point directly above the middle'of the support 4, where it carries a horizontal'pipe 99 on the ends of which the distributors 93 are supported. The branch pipe 98 is curved, as shown, so that it and the horizontal pipe 99 lie close to the inner surface of the casin 3 when the casing is in closed position. The pipes 98 and 99, therefore, iii no way obstruct the front or either side of the frame 4. The flow ofthe rinsing fluid through the conduit 95 and its branches is controlled by a valve 100 located in a convenient position directly below the lever 76 which controls the slide valve 75. The rinse distributors are adapted to project conical sprays, and may consist of nozzles of the form shown and claimed in Merseles U. S. Patent No. 1,481,327, issued Jannary 22, 1924. The conical sprays projectcd from the lowermuzzles 90, 91, 92 are all directed toward, the inner surface of the casing 3 when the casing is closed so that they cause no leakage around the lower edge of the casing.

ln the use of the machine, the motor 58 and the pump 59 are 0 rated continuously, while the washing mec anism is controlled by the lever 76 and the rinsing sprays are controlled by the valve 100. After the articles in a dish rack have been washed and rinsed and the valves 75 and 100 have been closed, the casing 3 is raised by means of a handle 41 to the position shown in Fig. 1, and the dish rack on the frame 4 is slid onto one of the dish tables 14, 15. A rack of soiled dishes from the other table is then slid onto the frame 4. The casin 3 is then moved down by the handle 41 until its lower edge strikes the brackets 22, and the dishes in the next rack are then washed and rinsed.

(lomparatively little physical efi'ort is required to use the machine, since all motion of the dish racks is horizontal, and the rollers 39 and 40 and the counterweight 42 make it easy toraise and lower the casing No leakage occurs, since all of the liquid projected from the wash and rinse distributors 50, 90, 91, 92, 93, which does not fall directly into the tank, strikes the Inner surface of the casing 3 and drains back into the tank from the bevelled lower edge of the casing. This is also true of such liquid as condenses in the casing after the casing has been raised.

All danger of scalding the operator is avoided, since the greater part of the steam contained in the washing chamber remains in the casing 3 when it is raised, and rapidly condenses. A little steam may escape just as the lower edge of the casing 3 passes the upper edge of the tank 2, but owing to the fact that the opening between these edges extends all the way around the tank,

' direction transverse to path of the control lever Frank W. Bemm filed October 9, 1919, Serial No. 329,533, and of claims of the copendin application of Hen R. Merseles, filed li ay 20, 1924, Serial No. 714,568 and are in consequence not claimed herein.

\Vhat is claimed is:

1. In a washing machine, the combination of a. distributor for directing a liquid upwardly and outwardly, a valve controlling the supply of liquid to the distributor, a vertically movable casing open at its botmm, a normally locked control lever for said valve, and means for automatically unlocking said control lever when the casin is moved downwardly to a position in w iich its inner surface will intercept the liquid projected from the distributor.

2. In a washing machine, the combination of a distributor wardly and outwardly, a valve controlling the sup ly of liquid to the distributor, a vertical y movable casing open at its bottom, a normally locked control lever for said valve, means for automatically unlocking said control lever when the casing is moved downwardly to a position in which the inner surface will intercept the liquid projected from the distributor, and means actuated by moving the control lever to open the valve to lock the casing in its closed position.

3. In a washing machine, the combination of a tank having a movable cover, a; liquid distributor, a valve controlling the supply of liquid thereto, a control lever for said valve, movable in a direction transverse to that in which the cover moves, a movable member, movable in the direction in which the cover moves, and yieldable means for normally positioning said member 1n the i and in the path of the closing movement of the cover.

4. In a 'washing machine, the combination of a tank having a movable cover, a catch on said cover, a liquid distributor, a valve controlling the suppl of liquid thereto, a control lever for sai valve movable in a that in which the cover moves, a locking member movable m the direction in which the cover moves and having a part normally l ing in the path of the cover, and a part a apted to hev above the catch on the cover when the first part is depressed by the cover, on the control lever positloned to strike the first part of the locking member when the locking member is in its normal position, and to move between the two parts of the locking member when the locking member is depressed.

5. In a washing machine, the combination of a support for the articles to be washed, a downwardly directed distributor above said support, a casing open at its bottom ing open at its for directing a liquid upand a. projection and adapted to enclose articles on said suport and said distributor, and a conduit cading from below the support to the distributor and a mounting for the casing permitting vertical movement thereof, both located so as to leave the front and sides oi the support unobstructed.

6. In a washing machine, a tank open at its top, a closure for said tank, and a mounting for said closure permitting vertical movement thereof, preventing movement thereof in all other directions, and comprising vertical members located substantially at the rear edge of the tank so as to leave the front and sides of the tank unobstructed.

7. In a. washing machine, a rectangular support for the articles to be washed, 9, casbottom and adapted to enclose articles on said support, and a mounting for said casing permitting vertical movement thereof and com rising a plurality of vertical rods all ocated outside the corners of said support so as to leave all sides thereof unobstructed when the casing is raised.

8. In a washing machine, a support for the articles to be washed, a casing open at its bottom and adapted to enclose articles on said support, and a mounting for said casing permitting vertical movement there of and comprising vertical members located wholly behind the reared e of said support so as to leave the sides ant port unobstructed when the casing is raised;

9. In a washing machine, a tank open at its top, a support in said tank with its supporting sur ace on a level with the upper edge of the tank, brackets secured to the front of the supinner wall of the tank and tosaid support I and having their outer portions below the level of the upper edge of the tank a vertically movable casing open at its bottom, and resilient means for arresting downward movement of the casing when its lower edge enters between the support and the upper edge of the tank.

10. In a washing machine, a support for the articles to be washed, a distributor located below said support and havin discharge openmgs positioned to direct a iquid upwardly against articles on the sup ort and discharge openings positioned to direct liquid upwardly outside two opposite edges of the support at the same time, and a casin above said support having a curved top and two opposite sides merging into said top to form a concave deflector.

11. In a washing machine, a rectangular support for the articles to be washed, a rotar distributor below said support having ra ial arms provided with upwardly directed discharge openings at their ends, the length of each of said arms being greater than one-half the width of the support, and

a casing above. the support having a curved top and two sides merging into its top to form a concave deflector.

12. In a washing machine, square support for the articles to be washed, a removable distributor below said sup having radial arms provided with u wardly directed, discharge openings at their ends, the length of .each of said arms being greater than one-half the width of the support and less than one half the diagonal of the suport.

P 13. In a washing machine, the combination of a tank having the form of an inverted L and providin a raised floor and a well, a rigid unit inclu ing a pump casing in said well and a conduit extending upward from the pump casing and above said floor, and a horizontal flange on said conduit resting on the floor.

14. In a washing machine, the combination of a tank having the form of an in verted L and providing a raised floor and a well, and a rigid unit including a pump casing and a conduit having an external horizontal flange and secured in said tank by attachin said pump casing to one side of said well of said floor.

1'5. In the washing machine, a combination of a tank open at its top, a support for the articles to be washed at the top of the tank, a distributor directed towards articles on the support, a valve controlling the supply of fluid of said distributor, an open bottom casing vertically movable bea fixed open tween a lower position in which it encloses.

articles on said support and an up er osition inwhich it permits removal 0 sa arport utor, a manual and said flange to the inner edge ticles, and means for preventing the opening of said valve when the casing is in its upper position.

16. In a washin tion of a liquid trolling the su machine, the combinaistributor, a valve conply of liquid to the distriby movable casing open at its ttom, amounting for gui'din said casing vertically between a. lower position in which it intercepts liquid from said distributor and a raised position, and means operative on the opening of the valve to prevent upward movement of the casing from its lower position while the valve is open.

17. In a washing machine, the combination of a liquid distributor, a valve controlling the suppl of liquid to said distributor, an operating ever for said valve, 8. manually movable casing open at its bottom, a mounting for guiding said casing vertically between a lower position in which it intercepts liquid from said distributor and a raised poistion, a member connected to said casing and means actuated by contro lever in opening the valve when the casing is in its lower sition to prevent movement of said mem sr while the valve 18 open.

18. In a washing machine, a distributor a tank and cover for confining liquid (ilStI'lb uted therefrom, a valve controlling thesup ply of liquid to the distributor, and means preventing the opening of the cover when the valve is open and the opening of the valve when the cover is 0 en.

In testimony whereof have hereunto set my hand.

ERIOH RazAnEMAon.

moving the a casing above the support having a curved top and two sides merging into its top to form a concave deflector.

12. In a washing machine, a fixed open square support for the articles to be washed, a removable distributor below said support having radial arms provided with u wardly directed discharge openings at their ends, the length of ,each of said arms being greater than one-half the width of the support and less than one half the diagonal of the support.

13. In a washing machine, the combination of a tank having the form of an inverted L and providin a raised floor and a well, a rigid unit inclur ing a pump casing in said well and a conduit extending upward from the pump casing and above said floor, and a horizontal flange on said conduit resting on the floor.

14. In a washing machine, the combination of a tank having the form of an inverted L and providing a raised floor and a well, and a rigid unit including a pump casing and a conduit having an external horizontal flange and secured in said tank by attaching said pump casing to one side 01 said well and said flange to the inner edge of said floor.

15. In the washing machine, a combination of a tank open at its top, a support for the articles to be washed at the top of the tank, a distributor directed towards articles on the support, a valve controlling the supply of fluid of said distributor, an open bottom casing vertically movable between a lower position in which it encloses articles on said support and an up er osition in which it permits removal 0 sm articles, and means for preventing the opening of said valve when the casing is in its upper position.

16. In a washin machine, the combination of a liquid distributor, a valve controlling the supply of liquid to the distributor, a manually movable casing open at its bottom, a mounting for guiding said casing vertically between a lower position in which it intercepts liquid from said distributor and a raised position, and means operative on the opening of the valve to prevent up- Ward movement of the casing from its lower position while the valve is open.

17. In a washing machine, the combination of a liquid distributor, a valve control- 55 ling the supply of liquid to said distributor, an operating ever for said valve, a manually movable casing open at its bottom, a mounting for guiding said casing vertically between a lower position in which it inter- 00 cepts liquid from said distributor and a. raised poistion, a member connected to said casing, and means actuated by moving the control lever in opening the valve when the casing is in its lower position to prevent movement of said member while the valve is open.

18. In a washing machine, a distributor, a tank and cover for confining liquid distributed therefrom, a valve controlling thesupply of liquid to the distributor, and means preventing the opening of the cover when the valve is open and the opening of the valve when the cover is 0 en.

In testimony whereof have hereunto set my hand.

ERICH RWZADEMACH.

CERTIFICATE OF CORRECTION.

Patent No. 1,628,818.

Granted May 17, 1927. m

ERICH R. ZADEMAGH.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 3, line 76, for the word "about" read "above"; page 4, line 31, for the word "'mazzles" read "nozzles"; page 6, line 62, claim 17, for the misspelled word "poistion" read "position"; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent 0ffice.

Signed and sealed this Seal.

14th day of Jane, A. a. 1927.

M J. Moore, Acting Commissioner of Patents.

CERTIFICATE CORRECTION.

Patent No. 1,628,818. Granted May 17, 1927. 10

ERIC" R. ZADEMACH.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 3, line 76, for the word "about" read "above"; page 4, line 81, for the word "muzzles" read "nozzles"; page 6, line 62, claim 17, for the misspelled word "poistion" read "position"; and that the said Letters Patent shouid be read with these corrections therein that the same may conform to the record of the case in the Patent 01'- fice.

Signed and sealed this 14th day of June, A. D. 1927.

M. J. Moore, Seal. Acting Commissioner of Patents. 

